JPS6119298B2 - - Google Patents
Info
- Publication number
- JPS6119298B2 JPS6119298B2 JP58038862A JP3886283A JPS6119298B2 JP S6119298 B2 JPS6119298 B2 JP S6119298B2 JP 58038862 A JP58038862 A JP 58038862A JP 3886283 A JP3886283 A JP 3886283A JP S6119298 B2 JPS6119298 B2 JP S6119298B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- gas
- retort
- shift
- electric heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000003054 catalyst Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 11
- 238000005485 electric heating Methods 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 47
- 238000010438 heat treatment Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000001273 butane Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J7/00—Apparatus for generating gases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/38—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Furnace Details (AREA)
Description
【発明の詳細な説明】
本発明は、炉内設置型吸熱型ガス発生装置に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an endothermic gas generator installed in a furnace.
従来、吸熱型ガスを炉内雰囲気ガスとして使用
する場合には、別途設けられる変成炉内にニツケ
ル系等の触媒を充填したガス変成レトルトを配置
し、メタン、ブタン、プロパンなどの炭化水素ガ
スと所定比率の空気との原料ガスを前記レトルト
内に供給し、所定温度に保持された触媒に前記原
料ガスを接触させることにより、変成ガスとし、
これを冷却装置で冷却したうえで熱処理炉に供給
している。 Conventionally, when using an endothermic gas as the furnace atmosphere gas, a gas conversion retort filled with a nickel-based catalyst or the like is placed in a separately installed conversion furnace, and a gas conversion retort filled with a catalyst such as a nickel catalyst is used to convert the gas into a hydrocarbon gas such as methane, butane, or propane. Supplying a raw material gas with air at a predetermined ratio into the retort and bringing the raw material gas into contact with a catalyst maintained at a predetermined temperature to produce a converted gas,
This is cooled by a cooling device and then supplied to a heat treatment furnace.
このように、吸熱型ガスを変成して、炉内雰囲
気として使用するには、変成炉のみならず冷却装
置を必要として高価になるという欠点を有してい
た。 As described above, converting endothermic gas and using it as the atmosphere in the furnace requires not only a converting furnace but also a cooling device, which is expensive.
本発明は、吸熱型ガスを熱処理炉で使用するに
あたつては前記冷却装置が不要であること、およ
び炉内の高温雰囲気をガス変成レトルトの熱源と
して使用することができないかを種々検討の結果
なされたもので、吸熱型ガス発成装置を、内部に
触媒が充填され、一端に原料ガス供給口、他端に
変成ガス出口を有する変成レトルトと、このレト
ルトを保熱部材で包囲するとともに、変成レトル
トと保熱部材との間に電気発熱体を配置した構成
とし、炉に直接取付け可能としたものである。す
なわち、炉内の高温雰囲気および電気発熱体とに
よつて触媒を常に所定温度に保持して、原料ガス
を一定組成の変成ガスとし、この変成ガスを直接
炉内に噴出するようにして、従来のものに比べて
省エネルギーを図るとともに、冷却装置を不要と
した炉内設置型吸熱型ガス発生装置を提供しよう
とするものである。 The present invention is based on various studies to find out whether the cooling device is unnecessary when endothermic gas is used in a heat treatment furnace, and whether the high-temperature atmosphere inside the furnace can be used as a heat source for a gas conversion retort. As a result, an endothermic gas generation device is equipped with a shift retort that is filled with a catalyst, has a raw material gas supply port at one end and a shift gas outlet at the other end, and surrounds this retort with a heat retaining member. , an electric heating element is arranged between the conversion retort and the heat retaining member, and can be directly attached to the furnace. That is, the catalyst is always maintained at a predetermined temperature by the high-temperature atmosphere in the furnace and an electric heating element, the raw material gas is made into a modified gas of a constant composition, and this modified gas is directly injected into the furnace. The aim is to provide an in-furnace type endothermic gas generator that saves energy compared to conventional systems and does not require a cooling device.
つぎに、本発明を一実施例である添付図面にし
たがつて説明する。 Next, the present invention will be explained with reference to the accompanying drawings, which are one embodiment of the present invention.
第１図は、本発明にかかる吸熱型ガス発生装置
を備えた熱処理炉Ｔの断面図であつて、炉内には
ラジアントチユーブ１が、天井壁２には雰囲気循
環フアン３と、吸熱型ガス発生装置（以下、ガス
発生装置という）５が設けられ、炉内に装入され
た支持構造４上の処理材Ｗは、吸熱型ガスを含む
雰囲気中で加熱されて浸炭、焼鈍等の熱処理が施
されるものである。 FIG. 1 is a sectional view of a heat treatment furnace T equipped with an endothermic gas generator according to the present invention, in which a radiant tube 1 is installed in the furnace, an atmosphere circulation fan 3 is installed in the ceiling wall 2, and an endothermic gas generator is installed in the furnace. A generator (hereinafter referred to as a gas generator) 5 is provided, and the treated material W on the support structure 4 charged into the furnace is heated in an atmosphere containing endothermic gas to undergo heat treatments such as carburizing and annealing. It is something that is administered.
前記ガス発生装置５は、第２図、第３図に示す
ように、断熱材７を内張した耐熱合金製または耐
熱セラミツク製の保熱部材６と、この保熱部材６
に、所定間隙を介して貫通して設けられた耐熱合
金製または耐熱セラミツク製の変成レトルト８と
からなる。そして、前記変成レトルト８の一端に
は変成ガス吐出口９を、他端には原料ガス供給口
１１を有する耐火材１０が設けてあり、内部には
粒状のニツケル系、白金系、ルテニウム系、ロジ
ユウム系等の触媒層１２が設けてある。なお、１
３は触媒支持用粒状耐火物、１４はサポート、１
５は原料ガス予熱用粒状耐火材である。 As shown in FIGS. 2 and 3, the gas generator 5 includes a heat retaining member 6 made of a heat-resistant alloy or heat-resistant ceramic and lined with a heat insulating material 7, and this heat retaining member 6.
The retort 8 is made of a heat-resistant alloy or a heat-resistant ceramic and is provided through the retort 8 with a predetermined gap therebetween. A refractory material 10 having a metamorphic gas discharge port 9 at one end of the metamorphic retort 8 and a raw material gas supply port 11 at the other end is provided inside the retort. A catalyst layer 12 made of rhodium or the like is provided. In addition, 1
3 is a granular refractory for catalyst support, 14 is a support, 1
5 is a granular refractory material for preheating raw material gas.
また、前記保熱部材６と変成レトルト８との間
隙には電気発熱体１６と熱電対１７とが設置され
ている。 Further, an electric heating element 16 and a thermocouple 17 are installed in the gap between the heat retaining member 6 and the metamorphic retort 8.
そして、前記ガス発生装置５は天井壁２に取付
けられ、変成レトルト８の炉外部分に位置する原
料ガス供給口１１から炭化水素ガス（プロパン、
メタン、ブタン等）と空気または炭化水素ガスと
酸素と窒素とを所定割合となるように混合器１８
で混合された原料ガスが供給され、触媒層１２で
吸熱型ガスに変成されて吐出口９から炉内に噴出
し、炉内雰囲気ガスとなる。１９，２０は流量
計、２１は炭化水素ガス圧力調整器である。 The gas generator 5 is attached to the ceiling wall 2 and supplies hydrocarbon gas (propane,
A mixer 18 mixes (methane, butane, etc.), air or hydrocarbon gas, oxygen, and nitrogen in a predetermined ratio.
The mixed raw material gas is supplied, is converted into an endothermic gas in the catalyst layer 12, is ejected into the furnace from the discharge port 9, and becomes the furnace atmosphere gas. 19 and 20 are flow meters, and 21 is a hydrocarbon gas pressure regulator.
前記触媒層１２で原料ガスを吸熱型ガスに変成
するのに必要な熱量は、主として電気発熱体１６
によるが、炉内温度が高温であれば保熱部材６を
介して利用する。また、レトルト８内の温度は、
前記熱電対１７からの信号を温度調節計２２によ
つて設定値と比較して開閉器２３を開閉して電気
発熱体１６の発熱量を制御して、前記触媒層１２
の温度を原料ガスの反応を十分に行なわせるに足
る800〜1050℃に維持されるようになつている。 The amount of heat required to convert the raw material gas into endothermic gas in the catalyst layer 12 is mainly generated by the electric heating element 16.
However, if the temperature inside the furnace is high, it is used via the heat retaining member 6. In addition, the temperature inside the retort 8 is
The signal from the thermocouple 17 is compared with a set value by the temperature controller 22, and the switch 23 is opened and closed to control the calorific value of the electric heating element 16.
The temperature is maintained at 800 to 1050°C, which is sufficient for the reaction of the raw material gas to occur.
以上の説明で明らかなように、本発明にかかる
吸熱型ガス発生は炉内に設置して使用するもので
あるから、従来においては、冷却装置で一旦冷却
した吸熱型ガスを昇温していた昇温工程が不要で
ある。したがつて、従来、変成炉加熱に約800Kc
ａｌ／m3、再加熱に約250Kcal/m3必要であつたもの
が、約230Kcal/m3でよく、大巾な省エネルギー
を図ることができる。 As is clear from the above explanation, since the endothermic gas generation according to the present invention is installed and used in a furnace, in the past, endothermic gas was heated once cooled by a cooling device. No heating process is required. Therefore, conventionally, it takes about 800Kc to heat the conversion furnace.
Al/m 3 , which used to require about 250 Kcal/m 3 for reheating, only needs about 230 Kcal/m 3 , making it possible to achieve significant energy savings.
また、従来においては、熱処理炉の他に変成炉
を設置しなければならなかつたが、本発明にかか
る吸熱型ガス発生装置は直接炉内に取付けるもの
であるから変成炉の設置スペースが不要となり、
スペースの有効利用をも可能とする。 Furthermore, in the past, it was necessary to install a shift furnace in addition to the heat treatment furnace, but since the endothermic gas generator according to the present invention is installed directly inside the furnace, there is no need for installation space for a shift furnace. ,
It also enables effective use of space.
さらに、変成レトルトは保温部材で包囲される
とともに、変成レトルト外周に設けた電気発熱に
よつて、変成レトルト内の触媒が加熱されるた
め、炉温が降下しても一定温度に保持され、常に
所定成分の吸熱型ガスを得ることができる。 Furthermore, the shift retort is surrounded by a heat insulating member, and the catalyst inside the shift retort is heated by electrical heat generated around the outer periphery of the shift retort, so even if the furnace temperature drops, it is always maintained at a constant temperature. An endothermic gas with predetermined components can be obtained.
第１図は本発明にかかる吸熱型ガス発生装置を
設けた熱処理炉の断面図、第２図は吸熱型ガス発
成装置の断面図で、第３図は第２図の―線断
面図である。
Ｔ……熱処理炉、２……天井壁、５……吸熱型
ガス発生装置、６……保熱部材、７……断熱材、
８……変成レトルト、９……変成ガス吐出口、１
１……原料ガス供給口、１２……触媒層、１６…
…電気発熱体、１７……熱電体。
Fig. 1 is a sectional view of a heat treatment furnace equipped with an endothermic gas generator according to the present invention, Fig. 2 is a sectional view of the endothermic gas generator, and Fig. 3 is a sectional view taken along the line - - in Fig. 2. be. T...Heat treatment furnace, 2...Ceiling wall, 5...Endothermic gas generator, 6...Heat retaining member, 7...Insulating material,
8... Metamorphic retort, 9... Metamorphic gas discharge port, 1
1... Raw material gas supply port, 12... Catalyst layer, 16...
...Electric heating element, 17...Thermoelectric element.
Claims (1)
吐出口を有し触媒を充填した変成レトルトを、断
熱材を内張した保熱部材で包囲するとともに、前
記変成レトルトと保熱部材との間に電気発熱体を
配置し、この電気発熱体の発熱量を制御して変成
レトルト内の触媒温度を所定値に維持することを
特徴とする炉内設置型吸熱型ガス発生装置。1. A shift retort having a raw material gas supply port on the outside of the furnace and a shift gas discharge port on the inside of the furnace and filled with a catalyst is surrounded by a heat insulating member lined with a heat insulating material, and the shift retort and the heat insulating member are 1. An endothermic gas generator installed in a furnace, characterized in that an electric heating element is disposed between the electric heating elements, and the calorific value of the electric heating element is controlled to maintain the catalyst temperature in the shift retort at a predetermined value.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58038862A JPS59162941A (en) | 1983-03-08 | 1983-03-08 | In-furnace arranging and heat absorbing type gas generating apparatus |
| KR1019830004950A KR840007893A (en) | 1983-03-08 | 1983-10-20 | Endothermic type gas generator installed in the furnace |
| KR2019880006104U KR880002231Y1 (en) | 1983-03-08 | 1988-04-28 | In-furnace arranging and heat absorbing type gas generating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58038862A JPS59162941A (en) | 1983-03-08 | 1983-03-08 | In-furnace arranging and heat absorbing type gas generating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59162941A JPS59162941A (en) | 1984-09-13 |
| JPS6119298B2 true JPS6119298B2 (en) | 1986-05-16 |
Family
ID=12537009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58038862A Granted JPS59162941A (en) | 1983-03-08 | 1983-03-08 | In-furnace arranging and heat absorbing type gas generating apparatus |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS59162941A (en) |
| KR (2) | KR840007893A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0522260Y2 (en) * | 1985-02-12 | 1993-06-08 | ||
| JPS6490028A (en) * | 1987-09-29 | 1989-04-05 | Osaka Oxygen Ind | Method for stabilizing start-up of generator for gaseous rx, gaseous ax and the like |
| JPH057237Y2 (en) * | 1989-07-10 | 1993-02-24 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540645A (en) * | 1978-09-18 | 1980-03-22 | Kowa Co | Benzopyrone derivative |
-
1983
- 1983-03-08 JP JP58038862A patent/JPS59162941A/en active Granted
- 1983-10-20 KR KR1019830004950A patent/KR840007893A/en not_active Application Discontinuation
-
1988
- 1988-04-28 KR KR2019880006104U patent/KR880002231Y1/en not_active IP Right Cessation
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5540645A (en) * | 1978-09-18 | 1980-03-22 | Kowa Co | Benzopyrone derivative |
Also Published As
| Publication number | Publication date |
|---|---|
| KR880002231Y1 (en) | 1988-06-22 |
| JPS59162941A (en) | 1984-09-13 |
| KR840007893A (en) | 1984-12-11 |
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